*SUPPORT*
IN: dax tufa gazzer gazzer OUT: RED RED RED RED RED RED RED RED
IN: kiki wif gazzer OUT: BLUE YELLOW BLUE YELLOW
IN: zup OUT: GREEN
IN: kiki dax blicket wif OUT: BLUE YELLOW YELLOW RED
IN: wif blicket dax OUT: RED RED YELLOW
IN: dax gazzer tufa OUT: RED RED RED RED
IN: dax tufa OUT: RED RED
IN: zup kiki tufa tufa OUT: GREEN BLUE GREEN BLUE GREEN BLUE GREEN BLUE
IN: wif OUT: YELLOW
IN: kiki blicket zup OUT: GREEN GREEN BLUE
IN: wif wif zup blicket wif OUT: YELLOW YELLOW YELLOW YELLOW GREEN
IN: wif kiki tufa OUT: YELLOW BLUE YELLOW BLUE
IN: kiki blicket kiki OUT: BLUE BLUE BLUE
IN: wif zup wif wif gazzer OUT: YELLOW GREEN YELLOW YELLOW YELLOW GREEN YELLOW YELLOW

*QUERY*
IN: kiki blicket zup tufa OUT: GREEN GREEN BLUE GREEN GREEN BLUE
IN: dax blicket wif OUT: YELLOW YELLOW RED
IN: wif blicket wif OUT: YELLOW YELLOW YELLOW
IN: kiki kiki gazzer OUT: BLUE BLUE BLUE BLUE
IN: wif blicket kiki OUT: BLUE BLUE YELLOW
IN: dax gazzer OUT: RED RED
IN: kiki gazzer gazzer OUT: BLUE BLUE BLUE BLUE
IN: wif blicket kiki gazzer OUT: BLUE BLUE YELLOW BLUE BLUE YELLOW
IN: kiki blicket zup gazzer OUT: GREEN GREEN BLUE GREEN GREEN BLUE
IN: dax zup OUT: RED GREEN

*GRAMMAR*
wif -> YELLOW 
 zup -> GREEN 
 dax -> RED 
 kiki -> BLUE 
 u1 blicket u2 -> [u2] [u2] [u1] 
 x1 gazzer -> [x1] [x1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 